Marsupial Bridge

Milwaukee County, Wisconsin


Marsupial Bridge


Milwaukee County, Wisconsin


City of Milwaukee


  • 2006 Wisconsin Ready Mixed Concrete Association Concrete Design Award – Municipal Infrastructure Category
  • 2006 Milwaukee Mayor’s Urban Design Award
  • 2006 American Society of Civil Engineers Wisconsin Section Engineering Achievement Award
  • 2006 American Institute of Architects Wisconsin Design Honor Award
  • 2007 International Rudy Bruner Award for Urban Excellence Silver Medal Winner

Scope and Limits of Construction Work

The Marsupial Bridge is a one of a kind bridge in the State of Wisconsin. Although it is basically a cable stayed, post-tensioned concrete pedestrian/bicycle facility, the thing that makes it stand alone is the fact that it is supported by a “host” structure, in this case the Holton Street Viaduct across the Milwaukee River on the east side of Milwaukee. It is supported by the column bent piers of the “host” structure and extends the length of the viaduct beneath the deck and between the columns. Functionally, the Marsupial Bridge provides a safe and efficient pedestrian and bicycle access between the burgeoning business district on the south and the growing and developing residential district on the north.

Bloom Companies’ scope of services included structural analysis of the existing Holton Street viaduct to determine its capacity to support the bicycle/pedestrian bridge. Bloom’s services also included examining bridge alternatives, preliminary and final design, and preparation of structural designs, plans, specifications, quantities and estimates, in accordance with AASHTO, WisDOT Facilities Development Manual and the WisDOT Bridge Manual.